Many order appropriate sweet (6)
I believe the answer is:
comfit
'sweet' is the definition.
(comfit is a kind of sweet)
'many order appropriate' is the wordplay.
'many' becomes 'c' (C is the Roman numeral for 100).
'order' becomes 'om' (order of merit).
'appropriate' becomes 'fit' ('fit' can be similar in meaning to 'appropriate').
'c'+'om'+'fit'='COMFIT'
(Other definitions for comfit that I've seen before include "Kind of sweet, nut in sugar" , "Sweet - MFI cot (anag)" , "Sweet consisting of nut in sugar" , "Candied fruit" .)